A) (?1, 1)
B) (?1, 1)?{0}
C) [?1, 1]
D) [?1, 1]?{0}
Correct Answer: D
Solution :
\[1+x\ge 0\,\,\Rightarrow \,\,x\ge -1\]; \[1-x\ge 0\,\,\Rightarrow \,\,x\le 1,\,\,x\ne 0\] Hence domain is \[[-1,\,1]-\{0\}\].
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